How To Fix UC901 - Receiver structure for sender structure &1 cannot be determined

UC901 - Overview

• Message type: E = Error

• Message class: UC - FI/CO Data transfer: errors during transfer

• Message number: 901

• Message text: Receiver structure for sender structure &1 cannot be determined

What causes this issue?

The receiver structure cannot be read from the ABAP Dictionary.

System Response

The rules for the sender structure cannot be converted.

How to fix this error?

Check whether the ABAP Dictionary structure for the receiver is active
and saved in the ABAP Dictionary. If not, activate and save it. Then
execute program RKCXPR40 again.

Error message extract from SAP system. Copyright SAP SE.

UC901 - Details

• The SAP error message UC901, which states "Receiver structure for sender structure &1 cannot be determined," typically occurs in the context of data transfer processes, particularly when using the SAP Process Integration (PI) or SAP Process Orchestration (PO) systems. This error indicates that the system is unable to find a corresponding receiver structure for the specified sender structure in the mapping configuration.
  Causes:
  
  Missing Mapping Configuration: The most common cause is that there is no mapping defined for the sender structure in the Integration Directory or the mapping program.
  Incorrect Sender Structure: The sender structure specified in the error message may not be correctly defined or may not exist in the system.
  Version Mismatch: There may be a version mismatch between the sender and receiver structures, leading to the inability to determine the correct mapping.
  Transport Issues: If the mapping was recently transported from one system to another, it may not have been properly activated